fought for health care reform? you bet we are. >> reporter: he attacked what he called lies about medicare cuts and welfare reform and condemned mitt romney's plan to reduce the debt and boost the economy. >> we simply cannot afford to give the reigns of government to someone who will double down on trickle down. >> reporter: in the official state-by-state vote put over the top. >> all 188 votes for the president and the next president of the united states, barack obama. >> reporter: in a surprise appearance, president obama joined clinton on stage. the president speaks tonight. vice president biden did a late-night walk through while break down continues at bank of america stadium and his speech and all today's events moved inside amid the threat of severe weather dampening the democrats' final day. tracie potts, nbc news, charlotte, north carolina. >>> and president obama may not be the only speaker who will electroify the crowd tonight. roll call is reporting that gabrielle giffords will deliver the pledge of al